How Hard Is It To Get Booted From Google AdWords

We all know it is fairly easy to get kicked out of (1) Google AdSense, (2) Yahoo! Publisher Network, (3) Google Web Search, (4) Yahoo! Web Search but how hard is it to get kicked out of Google AdWords?

AdWordsAdvisor says in message number 3105533 at a WebmasterWorld thread that it is pretty hard to get booted from AdWords.

Much of Google's income comes from AdWords advertising, as is well known - and it is not to anyone's advantage to 'toss aside' advertisers without an excellent reason for doing so.

Put another way, when and if advertisers are 'let go', it is done for excellent reasons - and in most cases after repeated warnings.

So the next question is how far can you cross over that line without getting kicked out?